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Finding the Fourth Proportional to 13,501.88, 20,256.06 and 4,267.88

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Solution

The fourth proportional to 13,501.88, 20,256.06 and 4,267.88 is: 6,402.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.88 : 20,256.06 = 4,267.88 : x
  2. Step 2: Convert to fraction form
    13,501.88/20,256.06 = 4,267.88/x
  3. Step 3: Cross multiply
    13,501.88x = 20,256.06 × 4,267.88
  4. Step 4: Simplify right side
    13,501.88x = 86,450,433.35
  5. Step 5: Solve for x
    x = 86,450,433.35/13,501.88
  6. Step 6: Final answer
    x = 6,402.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.